Brush



M. W. ALEXANDER.

BRUSH.

APPLICATION FILED AUG.2'4, 15H5.

1,364,971. Patented Jau. 11, 1921.

I I II I g'j- 51 f I UNITED STATES PATlazNT OFFICE.

MILTON W. ALEXANDER, OF ALBANY, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, T0 HENRY L. HUGHES C0., INC., OF

NEW YORK.

NEW YORK, N. Y.; A CORPORATION 0F BRUSH.

T o all 'whom t may concern.'

Be it known that I, MILTON W. ALnxaN- DER, a citizen of the United States, residing at Albany, county of Albany, and State of New York, have invented certain new and useful Improvements in Brushes, of wh1ch the following is a specifica-tion.

Reference may be had to the accompanying drawings, and the reference characters marked thereon, .which form a part of th1s specification. Similar characters refer to CIJ similar parts in the several figures therein.

This invention relates to atype of toiletbrush having bristles mounted in a flexible, elastic rubber pad.

A common form of brush of this type is a hair-brush having such a pad mounted and confined in convex form upon a brush-back with an air-chamber between the brush-pad and the back. l v

The principall object of the invent1on 1s to make the pad substantially integral and waterproof without interfering with its flexibility and elasticity.

Figure 1 of the drawings is a View 1n plan of a flexible sheet of vulcanized rubber perforated to receive the bristles.

Fig. 2 is a cross-section of the same showing the bristles inserted through the perforations in the sheet with the heads formed by bending over the ends of the bristles exposed upon the back of the sheet.

Fig. 3 is a cross-sectional view showing the heads of the bristles sealed or hermetically embedded in the integral flexible rubber pad formed by vulcanizing upon the rubber sheet, shown in Fig. 2, a rubber backing-sheet.

Fig. 4 is a view in cross section showing the pad confined in convex form upon a brush-back.

Referring to the drawings wherein the invention is shown in preferred form, l is a flexible sheet of vulcanized rubber provided with numerous perforations, 2, each adapted to receive one or more bristles as may be desired. l

This sheet is formed by vulcanizing the rubber to a degree adapting it to forman elastic support for thebristles, and is preferably provided with the perforations, 2, after being so vulcanized. r.

The bristles, 3, are inserted singly, or in groups comprising two or more, through the perforations, 2', said bristles having, on their inner ends, heads, 4, formed in any known Specification of Letters Patent.

Patented Jan. 11, 1921.

Application filed August 24, `1915. Serial No. 47,180.

backing-sheet is then vulcanized upon the bristle-supporting sheet, 1, until the two rubber sheetsyly and 5, form an integral flexible body of vulcanized rubber.

In making the brush-pad by the method described, I prefer to vulcanize the two sheets together at a temperature somewhat less than the temperature at which the bristle-supporting sheet was previously vulcanized, leaving said bristle-supporting sheet unaffected by such subsequent vulcanization with respect to its flexibility and elasticity.

By the process described, the inner ends of the bristles, and particularly their heads, are hermetically sealed or embedded in an integral body ofsoft rubber, and are thereby protected from moisture; and there being no seam or oint in the finished pad, there is no tendency for the backing-sheet to separate from the bristle-supporting sheet.

' The brush-pad thus formed may be itself used as a brush or it may be mounted in any known manner upon a suitable brush-back or handle.

The brush-pad made in accordance with this invention has its front surface through which the bristles project and which is ex posed in use, vulcanized to a greater degree.

than its back surface.

What I claim asnew and desire to secure by Letters Patent is- 1. A brush-pad of the class described, comprising two rubber sheets vulcanized into an integral body of soft rubber having bristles projecting from one of said sheets, said bristles being formed with heads embedded in the integral body formed by said vulcanizedtogether sheets.

2. An elastic brush-pad comprising an integral body of flexible vulcanized rubber vulcanized to a greater degree on one side thanl on the other, and bristles projecting from the more highly vulcanized side of the pad, said bristles having heads embedded in and wholly inclosed by the pad.

3. A brush-pad ot the class described, comprising two rubber sheets vulcanized into an integral body of soft rubber having bristles projecting from one of said sheets,

said bristles being formed with heads elnbedded in the integral body formed by said vulcanized-together sheets, in combination with a supporting back whereby said pad is held in upwardly convexed form.

4. A brush-pad of the class described comprising two rubber sheets vulcanized into an integral body of soft rubber having bristles projecting from one of said sheets said 10 bristles being formed with heads embedded in the integral body formed by said vulcan! ized-together sheets; in combination with u supporting back having walls surrounding an area of less dimensions than said pad, said pad being held in convexed form by engagement of its edges with said wells.

In testimony whereof, I have hereunto svt my hand this 23rd dey of August, 1915.

MILTON IV. ALEXANDER. 

